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HAC-94 < DTC/CIRCUIT DIAGNOSIS > [AUTOMATIC AIR CONDITIONING] AMBIENT SENSOR AMBIENT SENSOR Diagnosis Procedure INFOID:0000000009652551 1. CHECK AMBIENT SENSOR SIGNAL 1. Turn ignition switch ON. 2. Check voltage between A/C auto amp. harness connector and ground. Is the inspection result normal? YES >> GO TO 7. NO >> GO TO 2. 2. CHECK AMBIENT SENSOR POWER SUPPLY 1. Turn ignition switch OFF. 2. Disconnect ambient sensor connector. 3. Turn ignition switch ON. 4. Check voltage between ambient sensor harness connector and ground. Is the inspection result normal? YES >> GO TO 3. NO >> GO TO 5. 3. CHECK AMBIENT SENSOR GROUND CIRCUIT FOR OPEN 1. Turn ignition switch OFF. 2. Disconnect A/C auto amp. connector. 3. Check continuity between ambient sensor harness connector and A/C auto amp harness connector. Is the inspection result normal? YES >> GO TO 4. NO >> Repair harness or connector. 4. CHECK AMBIENT SENSOR Check ambient sensor. Refer to HAC-95, "Component Inspection" . Is the inspection result normal? YES >> Replace front A/C control (A/C auto amp.). Refer to HAC-143, "Removal and Installation" NO >> Replace ambient sensor. Refer to HAC-145, "Removal and Installation" + − Voltage A/C auto amp. Connector Terminal M50 39 Ground JSIIA1665ZZ + − Voltage (Approx.) Ambient sensor Connector Terminal E337 1 Ground 5 V Ambient sensor A/C auto amp. Continuity Connector Terminal Connector Terminal E337 2 M50 40 Existed |